Interesting Facts about the BROWN RAT

The Brown Rat is a member of the rodent family and the scientific term for them is Rattus norvegicus. Other popular names for this species is common rat, street rat, sewer rat, Hanover rat, Norway rat, brown Norway rat, Norwegian rat, or wharf rat. They originate from China and cover the entire planet except for Antarctica. They are the most successful animal besides humans. Science has modified this species into laboratory specimens and pets.

Did you know?

They can grow to 20 inches long.

There can be individuals weighing over 2 pounds.

The vision is usually 20/600.

These animals can have 20/1200 eyesight.

Their albino counterparts can see 2 times better.

The species was found to have human-like metacognition in a 2007 study.

It is often mistaken for the muskrat, a cat-sized creature. The hearing ability is so great, that they can perceive ultrasound frequencies. Their detection for odor is very advanced, and they can see ultraviolet light. White versions of this animal can see better because of the lack of pigment in its eyes. These animals make ultrasonic noises when having fun, and the sound repels mosquitoes. Teeth grinding is done when stressed.